Battery charger



FIG. 1 is a top perspective view of the battery charger showing my new design.

FIG. 2 is a bottom perspective view thereof.

FIG. 3 is a top view thereof.

FIG. 4 is a bottom view thereof.

FIG. 5 is a left side view thereof.

FIG. 6 is a right side view thereof.

FIG. 7 is a front view thereof; and,

FIG. 8 is a back view thereof.

The broken lines in the drawings depict portions of the battery charger that form no part of the claimed design. 

CLAIM I claim the ornamental design for a battery charger, as shown and described. 